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PR rtl-optimization/36438
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
index b42de54..076cfe3 100644 (file)
@@ -1,3 +1,609 @@
+2008-06-06 Uros Bizjak <ubizjak@gmail.com>
+
+       PR rtl-optimization/36438
+       * cse.c (fold_rtx) [ASHIFT, LSHIFTRT, ASHIFTRT]: Break out early
+       for vector shifts with constant scalar shift operands.
+
+2008-06-06  Sandip Matte  <sandip@rmicorp.com>
+
+       * doc/invoke.texi: Document -march=xlr.
+       * config/mips/xlr.md: New file.
+       * config/mips/mips.md: Include it.
+       (cpu): Add "xlr".
+       * config/mips/mips.h (PROCESSOR_XLR): New processor_type.
+       * config/mips/mips.c (mips_cpu_info_table): Add an XLR entry.
+       (mips_rtx_cost_data): Likewise.
+
+2008-06-06  Nathan Froyd  <froydnj@codesourcery.com>
+
+       * config/rs6000/rs6000.c (rs6000_mode_dependent_address): Remove
+       PRE_INC and PRE_DEC cases.
+
+2008-06-06  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/36419
+       * except.c (expand_resx_expr): Call do_pending_stack_adjust () before
+       the emitting jump insn.
+
+       PR target/36362
+       * gimplify.c (gimplify_expr) <case TRUTH_NOT_EXPR>: If *expr_p type
+       is not bool, boolify the whole *expr_p and convert to the desired type.
+
+2008-06-06  Jakub Jelinek  <jakub@redhat.com>
+
+       * c-cppbuiltin.c (c_cpp_builtins): Change _OPENMP value to 200805.
+       * langhooks.h (struct lang_hooks_for_decls): Add omp_finish_clause.
+       Add omp_private_outer_ref hook, add another argument to
+       omp_clause_default_ctor hook.
+       * langhooks-def.h (LANG_HOOKS_OMP_FINISH_CLAUSE): Define.
+       (LANG_HOOKS_OMP_PRIVATE_OUTER_REF): Define.
+       (LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR): Change to
+       hook_tree_tree_tree_tree_null.
+       (LANG_HOOKS_DECLS): Add LANG_HOOKS_OMP_FINISH_CLAUSE and
+       LANG_HOOKS_OMP_PRIVATE_OUTER_REF.
+       * hooks.c (hook_tree_tree_tree_tree_null): New function.
+       * hooks.h (hook_tree_tree_tree_tree_null): New prototype.
+       * tree.def (OMP_TASK): New tree code.
+       * tree.h (OMP_TASK_COPYFN, OMP_TASK_ARG_SIZE, OMP_TASK_ARG_ALIGN,
+       OMP_CLAUSE_PRIVATE_OUTER_REF, OMP_CLAUSE_LASTPRIVATE_STMT,
+       OMP_CLAUSE_COLLAPSE_ITERVAR, OMP_CLAUSE_COLLAPSE_COUNT,
+       OMP_TASKREG_CHECK, OMP_TASKREG_BODY, OMP_TASKREG_CLAUSES,
+       OMP_TASKREG_FN, OMP_TASKREG_DATA_ARG, OMP_TASK_BODY,
+       OMP_TASK_CLAUSES, OMP_TASK_FN, OMP_TASK_DATA_ARG,
+       OMP_CLAUSE_COLLAPSE_EXPR): Define.
+       (enum omp_clause_default_kind): Add OMP_CLAUSE_DEFAULT_FIRSTPRIVATE.
+       (OMP_DIRECTIVE_P): Add OMP_TASK.
+       (OMP_CLAUSE_COLLAPSE, OMP_CLAUSE_UNTIED): New clause codes.
+       (OMP_CLAUSE_SCHEDULE_AUTO): New schedule kind.
+       * tree.c (omp_clause_code_name): Add OMP_CLAUSE_COLLAPSE
+       and OMP_CLAUSE_UNTIED entries.
+       (omp_clause_num_ops): Likewise.  Increase OMP_CLAUSE_LASTPRIVATE
+       num_ops to 2.
+       (walk_tree_1): Handle OMP_CLAUSE_COLLAPSE and OMP_CLAUSE_UNTIED.
+       Walk OMP_CLAUSE_LASTPRIVATE_STMT.
+       * tree-pretty-print.c (dump_omp_clause): Handle
+       OMP_CLAUSE_SCHEDULE_AUTO, OMP_CLAUSE_UNTIED, OMP_CLAUSE_COLLAPSE,
+       OMP_CLAUSE_DEFAULT_FIRSTPRIVATE.
+       (dump_generic_node): Handle OMP_TASK and collapsed OMP_FOR loops.
+       * c-omp.c (c_finish_omp_for): Allow pointer iterators.  Remove
+       warning about unsigned iterators.  Change decl/init/cond/incr
+       arguments to TREE_VECs, check arguments for all collapsed loops.
+       (c_finish_omp_taskwait): New function.
+       (c_split_parallel_clauses): Put OMP_CLAUSE_COLLAPSE clause to
+       ws_clauses.
+       * c-parser.c (c_parser_omp_for_loop): Parse collapsed loops.  Call
+       default_function_array_conversion on init.  Add par_clauses argument.
+       If decl is present in parallel's lastprivate clause, change it to
+       shared and add lastprivate clause for decl to OMP_FOR_CLAUSES.
+       Add clauses argument, on success set OMP_FOR_CLAUSES to it.  Look up
+       collapse count in clauses.
+       (c_parser_omp_for, c_parser_omp_parallel): Adjust
+       c_parser_omp_for_loop callers.
+       (OMP_FOR_CLAUSE_MASK): Add 1 << PRAGMA_OMP_CLAUSE_COLLAPSE.
+       (c_parser_pragma): Handle PRAGMA_OMP_TASKWAIT.
+       (c_parser_omp_clause_name): Handle collapse and untied clauses.
+       (c_parser_omp_clause_collapse, c_parser_omp_clause_untied): New
+       functions.
+       (c_parser_omp_clause_schedule): Handle schedule(auto).
+       Include correct location in the error message.
+       (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_COLLAPSE
+       and PRAGMA_OMP_CLAUSE_UNTIED.
+       (OMP_TASK_CLAUSE_MASK): Define.
+       (c_parser_omp_task, c_parser_omp_taskwait): New functions.
+       (c_parser_omp_construct): Handle PRAGMA_OMP_TASK.
+       * tree-nested.c (convert_nonlocal_omp_clauses,
+       convert_local_omp_clauses): Handle OMP_CLAUSE_LASTPRIVATE_STMT,
+       OMP_CLAUSE_REDUCTION_INIT, OMP_CLAUSE_REDUCTION_MERGE,
+       OMP_CLAUSE_COLLAPSE and OMP_CLAUSE_UNTIED.
+       Don't handle TREE_STATIC or DECL_EXTERNAL VAR_DECLs in
+       OMP_CLAUSE_DECL.
+       (conver_nonlocal_reference, convert_local_reference,
+       convert_call_expr): Handle OMP_TASK the same as OMP_PARALLEL.  Use
+       OMP_TASKREG_* macros rather than OMP_PARALLEL_*.
+       (walk_omp_for): Adjust for OMP_FOR_{INIT,COND,INCR} changes.
+       * tree-gimple.c (is_gimple_stmt): Handle OMP_TASK.
+       * c-tree.h (c_begin_omp_task, c_finish_omp_task): New prototypes.
+       * c-pragma.h (PRAGMA_OMP_TASK, PRAGMA_OMP_TASKWAIT): New.
+       (PRAGMA_OMP_CLAUSE_COLLAPSE, PRAGMA_OMP_CLAUSE_UNTIED): New.
+       * c-typeck.c (c_begin_omp_task, c_finish_omp_task): New functions.
+       (c_finish_omp_clauses): Handle OMP_CLAUSE_COLLAPSE and
+       OMP_CLAUSE_UNTIED.
+       * c-pragma.c (init_pragma): Init omp task and omp taskwait pragmas.
+       * c-common.h (c_finish_omp_taskwait): New prototype.
+       * gimple-low.c (lower_stmt): Handle OMP_TASK.
+       * tree-parloops.c (create_parallel_loop): Create 1 entry
+       vectors for OMP_FOR_{INIT,COND,INCR}.
+       * tree-cfg.c (remove_useless_stmts_1): Handle OMP_* containers.
+       (make_edges): Handle OMP_TASK.
+       * tree-ssa-operands.c (get_expr_operands): Handle collapsed OMP_FOR
+       loops, adjust for OMP_FOR_{INIT,COND,INCR} changes.
+       * tree-inline.c (estimate_num_insns_1): Handle OMP_TASK.
+       * builtin-types.def (BT_PTR_ULONGLONG, BT_PTR_FN_VOID_PTR_PTR,
+       BT_FN_BOOL_ULONGLONGPTR_ULONGLONGPTR,
+       BT_FN_BOOL_BOOL_ULL_ULL_ULL_ULLPTR_ULLPTR,
+       BT_FN_BOOL_BOOL_ULL_ULL_ULL_ULL_ULLPTR_ULLPTR,
+       BT_FN_VOID_OMPFN_PTR_OMPCPYFN_LONG_LONG_BOOL_UINT): New.
+       * omp-builtins.def (BUILT_IN_GOMP_TASK, BUILT_IN_GOMP_TASKWAIT,
+       BUILT_IN_GOMP_LOOP_ULL_STATIC_START,
+       BUILT_IN_GOMP_LOOP_ULL_DYNAMIC_START,
+       BUILT_IN_GOMP_LOOP_ULL_GUIDED_START,
+       BUILT_IN_GOMP_LOOP_ULL_RUNTIME_START,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_STATIC_START,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_DYNAMIC_START,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_GUIDED_START,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_RUNTIME_START,
+       BUILT_IN_GOMP_LOOP_ULL_STATIC_NEXT,
+       BUILT_IN_GOMP_LOOP_ULL_DYNAMIC_NEXT,
+       BUILT_IN_GOMP_LOOP_ULL_GUIDED_NEXT,
+       BUILT_IN_GOMP_LOOP_ULL_RUNTIME_NEXT,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_STATIC_NEXT,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_DYNAMIC_NEXT,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_GUIDED_NEXT,
+       BUILT_IN_GOMP_LOOP_ULL_ORDERED_RUNTIME_NEXT): New builtins.
+       * gimplify.c (gimplify_omp_for): Allow pointer type for decl,
+       handle POINTER_PLUS_EXPR.  If loop counter has been replaced and
+       original iterator is present in lastprivate clause or if
+       collapse > 1, set OMP_CLAUSE_LASTPRIVATE_STMT.  Handle collapsed
+       OMP_FOR loops, adjust for OMP_FOR_{INIT,COND,INCR} changes.
+       (gimplify_expr): Handle OMP_SECTIONS_SWITCH and OMP_TASK.
+       (enum gimplify_omp_var_data): Add GOVD_PRIVATE_OUTER_REF.
+       (omp_notice_variable): Set GOVD_PRIVATE_OUTER_REF if needed,
+       if it is set, lookup var in outer contexts too.  Handle
+       OMP_CLAUSE_DEFAULT_FIRSTPRIVATE.  Handle vars that are supposed
+       to be implicitly determined firstprivate for task regions.
+       (gimplify_scan_omp_clauses): Set GOVD_PRIVATE_OUTER_REF if needed,
+       if it is set, lookup var in outer contexts too.  Set
+       OMP_CLAUSE_PRIVATE_OUTER_REF if GOVD_PRIVATE_OUTER_REF is set.
+       Handle OMP_CLAUSE_LASTPRIVATE_STMT, OMP_CLAUSE_COLLAPSE and
+       OMP_CLAUSE_UNTIED.  Take region_type as last argument
+       instead of in_parallel and in_combined_parallel.
+       (gimplify_omp_parallel, gimplify_omp_for, gimplify_omp_workshare):
+       Adjust callers.
+       (gimplify_adjust_omp_clauses_1): Set OMP_CLAUSE_PRIVATE_OUTER_REF if
+       GOVD_PRIVATE_OUTER_REF is set.  Call omp_finish_clause langhook.
+       (new_omp_context): Set default_kind to
+       OMP_CLAUSE_DEFAULT_UNSPECIFIED for OMP_TASK regions.
+       (omp_region_type): New enum.
+       (struct gimplify_omp_ctx): Remove is_parallel and is_combined_parallel
+       fields, add region_type.
+       (new_omp_context): Take region_type as argument instead of is_parallel
+       and is_combined_parallel.
+       (gimple_add_tmp_var, omp_firstprivatize_variable, omp_notice_variable,
+       omp_is_private, omp_check_private): Adjust ctx->is_parallel and
+       ctx->is_combined_parallel checks.
+       (gimplify_omp_task): New function.
+       (gimplify_adjust_omp_clauses): Handle OMP_CLAUSE_COLLAPSE and
+       OMP_CLAUSE_UNTIED.
+       * omp-low.c (extract_omp_for_data): Use schedule(static)
+       for schedule(auto).  Handle pointer and unsigned iterators.
+       Compute fd->iter_type.  Handle POINTER_PLUS_EXPR increments.
+       Add loops argument.  Extract data for collapsed OMP_FOR loops.
+       (expand_parallel_call): Assert sched_kind isn't auto,
+       map runtime schedule to index 3.
+       (struct omp_for_data_loop): New type.
+       (struct omp_for_data): Remove v, n1, n2, step, cond_code fields.
+       Add loop, loops, collapse and iter_type fields.
+       (workshare_safe_to_combine_p): Disallow combined for if
+       iter_type is unsigned long long.  Don't combine collapse > 1 loops
+       unless all bounds and steps are constant.  Adjust extract_omp_for_data
+       caller.
+       (expand_omp_for_generic): Handle pointer, unsigned and long long
+       iterators.  Handle collapsed OMP_FOR loops.  Adjust
+       for struct omp_for_data changes.  If libgomp function doesn't return
+       boolean_type_node, add comparison of the return value with 0.
+       (expand_omp_for_static_nochunk, expand_omp_for_static_chunk): Handle
+       pointer, unsigned and long long iterators.  Adjust for struct
+       omp_for_data changes.
+       (expand_omp_for): Assert sched_kind isn't auto, map runtime schedule
+       to index 3.  Use GOMP_loop_ull*{start,next} if iter_type is
+       unsigned long long.  Allocate loops array, pass it to
+       extract_omp_for_data.  For collapse > 1 loops use always
+       expand_omp_for_generic.
+       (omp_context): Add sfield_map and srecord_type fields.
+       (is_task_ctx, lookup_sfield): New functions.
+       (use_pointer_for_field): Use is_task_ctx helper.  Change first
+       argument's type from const_tree to tree.  Clarify comment.
+       In OMP_TASK disallow copy-in/out sharing.
+       (build_sender_ref): Call lookup_sfield instead of lookup_field.
+       (install_var_field): Add mask argument.  Populate both record_type
+       and srecord_type if needed.
+       (delete_omp_context): Destroy sfield_map, clear DECL_ABSTRACT_ORIGIN
+       in srecord_type.
+       (fixup_child_record_type): Also remap FIELD_DECL's DECL_SIZE{,_UNIT}
+       and DECL_FIELD_OFFSET.
+       (scan_sharing_clauses): Adjust install_var_field callers.  For
+       firstprivate clauses on explicit tasks allocate the var by value in
+       record_type unconditionally, rather than by reference.
+       Handle OMP_CLAUSE_PRIVATE_OUTER_REF.  Scan OMP_CLAUSE_LASTPRIVATE_STMT.
+       Use is_taskreg_ctx instead of is_parallel_ctx.
+       Handle OMP_CLAUSE_COLLAPSE and OMP_CLAUSE_UNTIED.
+       (create_omp_child_function_name): Add task_copy argument, use
+       *_omp_cpyfn* names if it is true.
+       (create_omp_child_function): Add task_copy argument, if true create
+       *_omp_cpyfn* helper function.
+       (scan_omp_parallel): Adjust create_omp_child_function callers.
+       Rename parallel_nesting_level to taskreg_nesting_level.
+       (scan_omp_task): New function.
+       (lower_rec_input_clauses): Don't run constructors for firstprivate
+       explicit task vars which are initialized by *_omp_cpyfn*.  
+       Pass outer var ref to omp_clause_default_ctor hook if
+       OMP_CLAUSE_PRIVATE_OUTER_REF or OMP_CLAUSE_LASTPRIVATE.
+       Replace OMP_CLAUSE_REDUCTION_PLACEHOLDER decls in
+       OMP_CLAUSE_REDUCTION_INIT.
+       (lower_send_clauses): Clear DECL_ABSTRACT_ORIGIN if in task to
+       avoid duplicate setting of fields.  Handle
+       OMP_CLAUSE_PRIVATE_OUTER_REF.
+       (lower_send_shared_vars): Use srecord_type if non-NULL.  Don't
+       copy-out if TREE_READONLY, only copy-in.
+       (expand_task_copyfn): New function.
+       (expand_task_call): New function.
+       (struct omp_taskcopy_context): New type.
+       (task_copyfn_copy_decl, task_copyfn_remap_type, create_task_copyfn):
+       New functions.
+       (lower_omp_parallel): Rename to...
+       (lower_omp_taskreg): ... this.  Use OMP_TASKREG_* macros where needed.
+       Call create_task_copyfn if srecord_type is needed.  Adjust
+       sender_decl type.
+       (task_shared_vars): New variable.
+       (check_omp_nesting_restrictions): Warn if work-sharing,
+       barrier, master or ordered region is closely nested inside OMP_TASK.
+       Add warnings for barrier if closely nested inside of work-sharing,
+       ordered, or master region.
+       (scan_omp_1): Call check_omp_nesting_restrictions even for
+       GOMP_barrier calls.  Rename parallel_nesting_level to
+       taskreg_nesting_level.  Handle OMP_TASK.
+       (lower_lastprivate_clauses): Even if some lastprivate is found on a
+       work-sharing construct, continue looking for them on parent parallel
+       construct.
+       (lower_omp_for_lastprivate): Add lastprivate clauses
+       to the beginning of dlist rather than end.  Adjust for struct
+       omp_for_data changes.
+       (lower_omp_for): Add rec input clauses before OMP_FOR_PRE_BODY,
+       not after it.  Handle collapsed OMP_FOR loops, adjust for
+       OMP_FOR_{INIT,COND,INCR} changes, adjust extract_omp_for_data caller.
+       (get_ws_args_for): Adjust extract_omp_for_data caller.
+       (scan_omp_for): Handle collapsed OMP_FOR
+       loops, adjust for OMP_FOR_{INIT,COND,INCR} changes.
+       (lower_omp_single_simple): If libgomp function doesn't return
+       boolean_type_node, add comparison of the return value with 0.
+       (diagnose_sb_1, diagnose_sb_2): Handle collapsed OMP_FOR
+       loops, adjust for OMP_FOR_{INIT,COND,INCR} changes.  Handle OMP_TASK.
+       (parallel_nesting_level): Rename to...
+       (taskreg_nesting_level): ... this.
+       (is_taskreg_ctx): New function.
+       (build_outer_var_ref, omp_copy_decl): Use is_taskreg_ctx instead
+       of is_parallel_ctx.
+       (execute_lower_omp): Rename parallel_nesting_level to
+       taskreg_nesting_level.
+       (expand_omp_parallel): Rename to...
+       (expand_omp_taskreg): ... this.  Use OMP_TASKREG_* macros where needed.
+       Call omp_task_call for OMP_TASK regions.
+       (expand_omp): Adjust caller, handle OMP_TASK.
+       (lower_omp_1): Adjust lower_omp_taskreg caller, handle OMP_TASK.
+
+       * bitmap.c (bitmap_default_obstack_depth): New variable.
+       (bitmap_obstack_initialize, bitmap_obstack_release): Do nothing
+       if argument is NULL and bitmap_default_obstack is already initialized.
+       * ipa-struct-reorg.c (do_reorg_1): Call bitmap_obstack_release
+       at the end.
+       * matrix-reorg.c (matrix_reorg): Likewise.
+
+2008-06-06  Uros Bizjak  <ubizjak@gmail.com>
+
+       * config/i386/i386.md (*indirect_jump): Macroize using P
+       mode iterator.  Remove !TARGET_64BIT from insn constraints.
+       (*tablejump_1): Ditto.
+       (*indirect_jump_rex64): Remove insn pattern.
+       (*tablejump_1_rex64): Ditto.
+       (eh_return_<mode>): Macroize using P mode iterator from eh_return_di
+       and eh_return_si insn patterns.
+
+2008-06-06  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-structalias.c (merge_smts_into): Remove.
+       (find_what_p_points_to): Do not bother to compute the
+       points-to set for pt_anything pointers.
+       * tree-ssa-operands.c (get_addr_dereference_operands): No NMT
+       for pt_anything pointers is ok.
+
+2008-06-06  Jan Hubicka  <jh@suse.cz>
+
+       * passes.c (execute_ipa_pass_list): Do not regenerate summaries.
+
+2008-06-06  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+       * cgraph.c: Fix typos in comments.
+       (cgraph_availability_names): Fix string typo.
+       * fold-const.c: Fix typos in comments.
+       (fold_binary): Fix typo in warning.
+       * genautomata.c: Fix typos in comments.
+       (check_presence_pattern_sets): Fix typo in local variable.
+       (output_description): Fix typo in output.
+       * ggc-zone.c (ggc_pch_finish): Fix typo in error message.
+       * hwint.h: Likewise.
+       * matrix-reorg.c (check_allocation_function): Likewise.
+       * omega.c (smooth_weird_equations): Likewise.
+       * auto-inc-dec.c: Fix typos in comments.
+       * bb-reorder.c: Likewise.
+       * builtins.c: Likewise.
+       * c-common.c: Likewise.
+       * c-cppbuiltin.c: Likewise.
+       * c-parser.c: Likewise.
+       * c-pretty-print.c: Likewise.
+       * cfgcleanup.c: Likewise.
+       * cfgexpand.c: Likewise.
+       * cfghooks.c: Likewise.
+       * cfglayout.c: Likewise.
+       * cfgloopmanip.c: Likewise.
+       * cgraphunit.c: Likewise.
+       * coverage.c: Likewise.
+       * dbxout.c: Likewise.
+       * df-byte-scan.c: Likewise.
+       * df-core.c: Likewise.
+       * df-problems.c: Likewise.
+       * df-scan.c: Likewise.
+       * dfp.c: Likewise.
+       * dominance.c: Likewise.
+       * domwalk.c: Likewise.
+       * dse.c: Likewise.
+       * dwarf2out.c: Likewise.
+       * emit-rtl.c: Likewise.
+       * et-forest.c: Likewise.
+       * function.c: Likewise.
+       * function.h: Likewise.
+       * gcc.c: Likewise.
+       * gcov-io.c: Likewise.
+       * gcov.c: Likewise.
+       * gcse.c: Likewise.
+       * genattrtab.c: Likewise.
+       * ggc-page.c: Likewise.
+       * gimplify.c: Likewise.
+       * gthr-lynx.h: Likewise.
+       * haifa-sched.c: Likewise.
+       * ipa-cp.c: Likewise.
+       * ipa-inline.c: Likewise.
+       * ipa-prop.h: Likewise.
+       * ipa-pure-const.c: Likewise.
+       * ipa-struct-reorg.c: Likewise.
+       * ipa-struct-reorg.h: Likewise.
+       * ipa-type-escape.c: Likewise.
+       * ipa.c: Likewise.
+       * loop-doloop.c: Likewise.
+       * mips-tfile.c: Likewise.
+       * mkmap-flat.awk: Likewise.
+       * mkmap-symver.awk: Likewise.
+       * modulo-sched.c: Likewise.
+       * omp-low.c: Likewise.
+       * optabs.c: Likewise.
+       * optabs.h: Likewise.
+       * opts.c: Likewise.
+       * passes.c: Likewise.
+       * postreload-gcse.c: Likewise.
+       * postreload.c: Likewise.
+       * predict.c: Likewise.
+       * pretty-print.h: Likewise.
+       * profile.c: Likewise.
+       * protoize.c: Likewise.
+       * ra-conflict.c: Likewise.
+       * real.c: Likewise.
+       * recog.c: Likewise.
+       * regclass.c: Likewise.
+       * regs.h: Likewise.
+       * reload.c: Likewise.
+       * rtl-error.c: Likewise.
+       * rtlanal.c: Likewise.
+       * scan.h: Likewise.
+       * sched-rgn.c: Likewise.
+       * see.c: Likewise.
+       * stmt.c: Likewise.
+       * target.h: Likewise.
+       * tree-dfa.c: Likewise.
+       * tree-eh.c: Likewise.
+       * tree-flow-inline.h: Likewise.
+       * tree-inline.c: Likewise.
+       * tree-into-ssa.c: Likewise.
+       * tree-loop-distribution.c: Likewise.
+       * tree-nested.c: Likewise.
+       * tree-parloops.c: Likewise.
+       * tree-pass.h: Likewise.
+       * tree-pretty-print.c: Likewise.
+       * tree-profile.c: Likewise.
+       * tree-scalar-evolution.c: Likewise.
+       * tree-sra.c: Likewise.
+       * tree-ssa-alias-warnings.c: Likewise.
+       * tree-ssa-ccp.c: Likewise.
+       * tree-ssa-coalesce.c: Likewise.
+       * tree-ssa-dom.c: Likewise.
+       * tree-ssa-dse.c: Likewise.
+       * tree-ssa-forwprop.c: Likewise.
+       * tree-ssa-live.c: Likewise.
+       * tree-ssa-live.h: Likewise.
+       * tree-ssa-loop-im.c: Likewise.
+       * tree-ssa-loop-ivopts.c: Likewise.
+       * tree-ssa-loop-niter.c: Likewise.
+       * tree-ssa-loop-prefetch.c: Likewise.
+       * tree-ssa-phiopt.c: Likewise.
+       * tree-ssa-phiprop.c: Likewise.
+       * tree-ssa-sccvn.c: Likewise.
+       * tree-ssa-ter.c: Likewise.
+       * tree-ssa-threadupdate.c: Likewise.
+       * tree-ssa.c: Likewise.
+       * tree-vect-analyze.c: Likewise.
+       * tree-vect-transform.c: Likewise.
+       * tree-vectorizer.c: Likewise.
+       * tree-vn.c: Likewise.
+       * tree-vrp.c: Likewise.
+       * tree.c: Likewise.
+       * tree.def: Likewise.
+       * tree.h: Likewise.
+       * unwind-dw2-fde.c: Likewise.
+       * unwind.inc: Likewise.
+       * value-prof.c: Likewise.
+       * vmsdbgout.c: Likewise.
+
+2008-06-05  David Edelsohn  <edelsohn@gnu.org>
+
+       * config/rs6000/xcoff.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Do not
+       always place FP constants in the TOC for TARGET_POWERPC64.
+       * config/rs6000/linux64.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): Same.
+
+2008-06-05  Joseph Myers  <joseph@codesourcery.com>
+
+       * config.gcc (powerpc-*-linux*spe*): Use t-dfprules.
+       * config/rs6000/dfp.md (negdd2, absdd2, negtd2, abstd2): Do not
+       enable for TARGET_E500_DOUBLE.
+       (*movdd_softfloat32): Also enable for !TARGET_FPRS.
+       * config/rs6000/rs6000.c (invalid_e500_subreg): Treat decimal
+       floating-point modes like integer modes for E500 double.
+       (rs6000_legitimate_offset_address_p): Likewise.
+       (rs6000_legitimize_address): Likewise.  Do not allow REG+REG
+       addressing for DDmode for E500 double.
+       (rs6000_hard_regno_nregs): Do not treat decimal floating-point
+       modes as using 64-bits of registers for E500 double.
+       (spe_build_register_parallel): Do not handle DDmode or TDmode.
+       (rs6000_spe_function_arg): Do not handle DDmode or TDmode
+       specially for E500 double.
+       (function_arg): Do not call rs6000_spe_function_arg for DDmode or
+       TDmode for E500 double.
+       (rs6000_gimplify_va_arg): Only handle SDmode in registers
+       specially if TARGET_HARD_FLOAT && TARGET_FPRS.
+       (rs6000_split_multireg_move): Do not handle TDmode specially for
+       E500 double.
+       (spe_func_has_64bit_regs_p): Do not treat DDmode or TDmode as
+       using 64-bit registers for E500 double.
+       (emit_frame_save): Do not handle DDmode specially for E500 double.
+       (gen_frame_mem_offset): Likewise.
+       (rs6000_function_value): Do not call spe_build_register_parallel
+       for DDmode or TDmode.
+       (rs6000_libcall_value): Likewise.
+       * config/rs6000/rs6000.h (LOCAL_ALIGNMENT, MEMBER_TYPE_FORCES_BLK,
+       DATA_ALIGNMENT, CLASS_MAX_NREGS): Do not handle DDmode specially
+       for E500 double.
+
+2008-06-04  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * config/i386/i386.c (setup_incoming_varargs_64): Fix a typo
+       in comments.
+
+2008-06-04  Junjie Gu <jgu@tensilica.com>
+
+       * config/xtensa/lib2funcs.S (__xtensa_nonlocal_goto): Use unsigned
+       comparison for frame pointers.
+
+2008-06-04  Andy Hutchinson  <hutchinsonandy@aim.com>
+
+       PR target/27386
+       * config/avr/avr.h (PUSH_ROUNDING): Remove.
+
+2008-06-04  Andy Hutchinson  <hutchinsonandy@aim.com>
+
+       PR target/30243
+       * builtins.c (expand_builtin_signbit): Don't take lowpart when
+       register is already smaller or equal to required mode. 
+
+2008-06-04  Xinliang David Li  <davidxl@google.com>
+
+       * tree-call-cdce.c: New file. 
+       (cond_dead_built_in_calls): New static variable.
+       (input_domain): New struct.
+       (check_pow): New function.
+       (check_builtin_call): Ditto.
+       (check_target_format): Ditto.
+       (is_call_dce_candidate): Ditto.
+       (gen_one_condition): Ditto.
+       (gen_conditions_for_domain): Ditto.
+       (get_domain): Ditto.
+       (gen_conditions_for_pow_cst_base): Ditto.
+       (gen_conditions_for_pow_int_base): Ditto.
+       (gen_conditions_for_pow): Ditto.
+       (get_no_error_domain): Ditto.
+       (gen_shrink_wrap_conditions): Ditto.
+       (shrink_wrap_one_built_in_call): Ditto.
+       (shink_wrap_conditional_dead_built_in_calls): Ditto.
+       (tree_call_cdce): Ditto.
+       (gate_call_cdce): Ditto.
+       (pass_call_cdce): New gimple pass.
+       * passes.c: (init_optimization_passes): New pass.
+       * tree-pass.h: New pass declaration.
+       * opts.c (decode_options): New flag setting.
+       * common.opt: Add -ftree-builtin-call-dce flag.
+       * Makefile.in: Add new source file.
+       * tempvar.def: New tv_id.
+       * doc/invoke.texi (-ftree-builtin-call-dce): New flag.
+
+2008-06-04  Richard Guenther  <rguenther@suse.de>
+
+       * tree-flow-inline.h (is_global_var): Do not check TREE_STATIC on MTAGs.
+       (is_call_clobbered): Always check var_ann->call_clobbered.
+       (mark_call_clobbered): Always set var_ann->call_clobbered.
+       (clear_call_clobbered): Always clear var_ann->call_clobbered.
+       * tree-ssa-alias.c (mark_non_addressable): Use clear_call_clobbered.
+       (reset_alias_info): Clear call clobbering info on MTAGs and
+       globals as well.
+       (set_pt_anything): Set pt_global_mem.
+       (create_tag_raw): Adjust comment.
+       (may_be_aliased): Do not check TREE_PUBLIC on MTAGs.
+
+2008-06-04  Joseph Myers  <joseph@codesourcery.com>
+           Maxim Kuvyrkov  <maxim@codesourcery.com>
+
+       * config/m68k/m68k.opt (mxgot): New option.
+       * config/m68k/m68k.c (legitimize_pic_address): Handle -mxgot.
+       (m68k_output_addr_const_extra): New.
+       * config/m68k/m68k.h (OUTPUT_ADDR_CONST_EXTRA): New.
+       * config/m68k/m68k-protos.h (m68k_output_addr_const_extra): Declare.
+       * config/m68k/m68k.md (UNSPEC_GOTOFF): Define.
+       * doc/invoke.texi (M680x0 Options): Document -mxgot.
+
+2008-06-04  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-structalias.c (handle_ptr_arith): Correctly handle
+       negative or non-representable offsets.
+
+2008-06-03  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * config/i386/i386.c (ix86_gen_leave): New.
+       (ix86_gen_pop1): Likewise.
+       (ix86_gen_add3): Likewise.
+       (ix86_gen_sub3): Likewise.
+       (ix86_gen_sub3_carry): Likewise.
+       (ix86_gen_one_cmpl2): Likewise.
+       (ix86_gen_monitor): Likewise.
+       (override_options): Initialize ix86_gen_leave, ix86_gen_pop1,
+       ix86_gen_add3, ix86_gen_sub3, ix86_gen_sub3_carry,
+       ix86_gen_one_cmpl2 and ix86_gen_monitor.
+       (ix86_file_end): Use mov%z0 instead of mov{q}/mov{l}.
+       (output_set_got): Use mov%z0, pop%z0 and add%z0 instead of
+       mov{q}/mov{l}, pop{q}/pop{l} and add{q}/add{l}.
+       (ix86_expand_epilogue): Updated.
+       (print_operand): Handle integer register operand for 'z'.
+       (ix86_expand_strlensi_unroll_1): Likewise.
+       (ix86_expand_strlen): Likewise.
+       (ix86_expand_builtin): Likewise.
+       (x86_output_mi_thunk): Use mov%z1 and add%z1 instead of
+       mov{q}/mov{l} and add{q}/add{l}.
+
+2008-06-03  Kai Tietz  <kai.tietz@onevision.com>
+
+       * config/i386/i386.md (P): New mode iterator.
+       (SFmode push_operand splitter): Macroize DImode and SImode pushes
+       using P mode iterator.
+       (DFmode push_operand splitter): Ditto.
+       (XFmode push_operand splitter): Ditto.
+       (DFmode float_extend SFmode push_operand splitter): Ditto.
+       (XFmode float_extend SFmode push_operand splitter): Do not generate
+       SImode pushes for 64bit target.  Macroize Dimode and SImode
+       pushes using P mode iterator.
+       (XFmode float_extend DFmode push_operand splitter): Ditto.
+
+2008-06-03  Kai Tietz  <kai.tietz@onevision.com>
+
+       * config/i386/i386-protos.h (ix86_reg_parm_stack_space): New.
+       * config/i386/i386.h (ix86_reg_parm_stack_space): Removed prototype.
+       * config/i386/i386.c (ix86_reg_parm_stack_space): Changed
+       return type to int.
+       (ix86_call_abi_override): Remove check for call_used_regs.
+
 2008-06-03  Richard Guenther  <rguenther@suse.de>
 
        * tree-ssa-structalias.c (find_func_aliases): Add constraints
@@ -7,8 +613,7 @@
 
        * doc/tm.texi (OVERRIDE_ABI_FORMAT): New.
        * doc/extend.texi (ms_abi,sysv_abi): New attribute description.
-       * function.c (allocate_struct_function): Use of
-       OVERRIDE_ABI_FORMAT.
+       * function.c (allocate_struct_function): Use of OVERRIDE_ABI_FORMAT.
        * config/i386/cygming.h (TARGET_64BIT_MS_ABI): Make use
        of cfun and DEFAULT_ABI to deceide abi mode.
        (DEFAULT_ABI): New.
        (ix86_reg_parm_stack_space): New prototype.
        (CUMULATIVE_ARGS): Add call_abi member.
        (machine_function): Add call_abi member.
-       * config/i386/mingw32.h (EXTRA_OS_CPP_BUILTINS): Replace TARGET_64BIT_MS_ABI
-       by DEFAULT_ABI compare to MS_ABI.
+       * config/i386/mingw32.h (EXTRA_OS_CPP_BUILTINS): Replace
+       TARGET_64BIT_MS_ABI by DEFAULT_ABI compare to MS_ABI.
 
 2008-06-02  Andy Hutchinson  <hutchinsonandy@aim.com>